Tech9
Part of the Furniture
As far as I’m aware I’ve never been able to use 5Ghz-2 on 160Mhz I have a GT-AX11000.
It depends on the region, channels used and perhaps firmware. Picture borrowed from SNB Forums, GT-AX11000:
Only really need to be worried about DFS if you live near an airport or military base.
Only? I'm pretty sure folks around this place may have some issues too - The Weather Network building in Oakville, ON: